49 results about "Antimony trichloride" patented technology

The invention relates to the field of electrode materials, in particular to an antimony-based composite material and a preparation method and application thereof.The preparation method comprises the steps that graphene quantum dots are dispersed in deionized water to obtain a water phase A, antimony trichloride is added into the deionized water and mixed to be uniform to obtain a water phase B, and the water phase B is prepared; the preparation method comprises the following steps: uniformly mixing a surfactant, n-butyl alcohol, an organic solvent and 1-aminopropyl-3-methylimidazole phosphate to obtain an oil phase, dividing the oil phase into two parts, namely an oil phase A and an oil phase B, respectively adding the water phase A and the water phase B into the oil phase A and the oil phase B, stirring to obtain a microemulsion A and a microemulsion B, mixing the microemulsion A and the microemulsion B, quickly stirring to obtain a mixed reaction solution, and drying to obtain a finished product. Transferring the mixed reaction solution into a hydrothermal reaction kettle, sealing, heating to 100-120 DEG C, reacting for 1-10 hours, recovering to room temperature after the reaction is finished, centrifuging, collecting a product, washing and drying, thereby obtaining the antimony-based composite material which is used as a sodium-ion battery negative electrode material and has excellent electrochemical performance.

The invention provides a preparation method of antimony particles and a device used by the preparation method, and belongs to the field of antimony preparation. The invention provides a preparation method of antimony particles, which comprises the following steps: continuously introducing a mixed gas containing gaseous antimony trichloride and hydrogen and a carrier gas into a vertical fluidized bed reactor filled with antimony micro powder for reduction reaction, and adjusting the flow of the mixed gas and the carrier gas to obtain the antimony particles with target particle size, antimony particles are obtained at a bottom discharge hole of the vertical fluidized bed reactor. The antimony particles are prepared by adopting the vertical fluidized bed reactor, and the gravity of the generated antimony particles is larger than the borne suspension force by adjusting the flow of the mixed gas and the carrier gas in the preparation process, so that the antimony particles with controllable and uniform particle sizes are directly synthesized.

The invention relates to the technical field of metal powder material preparation, and particularly discloses antimony-doped cesium terbium chloride microcrystalline powder and a preparation method thereof. The chemical composition of the microcrystalline powder is Cs < 5 > Tb < 1-x > Sb < x > Cl < 8 >. 6H < 2 > O, wherein x is equal to 0.05 to 0.30. The preparation method comprises the following steps: mixing cesium chloride, terbium chloride hexahydrate and antimony trichloride according to a molar ratio of 5: 0.8: x; adding pyridine hydrochloride as a chlorine element supplement, wherein the dosage of the pyridine hydrochloride is that 0.05-0.20 mmol of Py.HCl is used for every 1 mmol of CsCl; adding stearic acid as a process dispersant; and through combined treatment of mechanical ball milling and freeze drying, antimony-doped cesium-terbium-chlorine microcrystal powder with regular morphology and good dispersibility is obtained. The method is simple in process and mild in condition, particle aggregation can be effectively inhibited, the crystallinity and dispersion uniformity of the powder are improved, and the prepared microcrystal powder shows excellent optical performance.

The invention discloses a preparation method of a denitration catalyst Ce-Sb-Mo / TiO2 with a wide temperature window and high water resistance, and belongs to the technical field of catalyst materials.The preparation method comprises the following steps that cerium nitrate hexahydrate, antimony trichloride and ammonium heptamolybdate tetrahydrate are added into deionized water to be subjected to ultrasonic dissolution and then stirred, titanium dioxide powder is added, magnetic stirring is conducted at the room temperature, and a mixture is obtained; obtaining a solution; dropwise adding NH3.H2O into the obtained solution to adjust the pH value to be 10, continuously stirring, then separating the solid from the liquid, washing the solid with deionized water to be neutral, drying and calcining to obtain the product. Cerium, antimony and molybdenum are loaded on a titanium dioxide carrier by utilizing a precipitation method, and after the titanium dioxide carrier is treated, a test result shows that both antimony and molybdenum are successfully introduced to the surface of the catalyst. The obtained cerium-based catalyst is wide in temperature window, high in water resistance and sulfur resistance, high in oxidation-reduction capacity and high in surface acidity, and the vanadium-tungsten catalyst is wide in temperature window.

The invention provides a preparation method of high-purity antimony trichloride and high-purity antimony, and belongs to the technical field of chemical production processes. The method provided by the invention comprises the following steps: carrying out chlorination reaction on antimony particles in top-blown chlorine-containing gas, side-blown chlorine-containing gas and bottom-blown chlorine-containing gas to obtain antimony trichloride gas; the top-blown chlorine-containing gas, the side-blown chlorine-containing gas and the bottom-blown chlorine-containing gas are mixed gas of chlorine and shielding gas; condensing and crystallizing part of the antimony trichloride gas in sequence to obtain high-purity antimony trichloride; the rest antimony trichloride gas is subjected to a reduction reaction in bottom blowing hydrogen-containing gas, and high-purity antimony is obtained; the hydrogen-containing gas is mixed gas of hydrogen and protective gas. According to the method, the uniformity and efficiency of the chlorination reaction can be effectively controlled in a top-side bottom-blowing multi-point gas inlet mode, high-purity antimony trichloride and high-purity antimony are obtained, the antimony trichloride preparation process is greatly simplified, and the method is suitable for industrial production.

The invention discloses an active targeting type I photosensitizer and a preparation method thereof, and particularly relates to the field of cancer photodynamic therapy. The preparation method comprises the following steps: on the basis of a solvothermal method without participation of mercaptan, sequentially adding antimony trichloride and a morphology control agent into a proper solvent, magnetically stirring to fully dissolve the antimony trichloride and the morphology control agent, and then loading into a reaction kettle with a polytetrafluoroethylene liner to perform solvothermal reaction, the morphology of the antimony nanoparticles (Sb NPs) is adjusted by adjusting the temperature and the reaction time of the hydrothermal reaction and the types and the mole number of the morphology control agent and the solvent. And then sequentially coating by using polydopamine (PDA) and a cancer cell membrane to obtain the I-type photosensitive photosensitizer with the homologous targeted homing effect. By adopting the technical scheme, the problem that the existing photosensitizer for the photodynamic therapy is insufficient in tumor targeting capability is solved, and the effect of the photodynamic therapy is improved.

The application relates to a preparation method of a TiO2 / Sb2O3 / PSAC heterojunction sterilization composite material, which comprises the following steps: 1) adding a cationic surfactant, tetrabutyl titanate, antimony trichloride or antimony pentachloride into deionized water in sequence and stirring until the solution is white; 2) placing a FOSS crucible with coal-tar pitch-based spherical activated carbon into a high-pressure reaction kettle with concentrated nitric acid, heating, washing with deionized water until neutral, and naturally air-drying; 3) placing the dried coal-tar pitch-based spherical activated carbon into the white solution, stirring, finally adding sodium hydroxide, stirring, and then placing into a high-pressure reaction kettle, heating and keeping for a period of time; and naturally cooling, centrifugalizing, washing and drying. The application effectively combines the adsorption performance and the photocatalytic performance of the activated carbon through a hydrothermal one-step in-situ method, increases the mechanical performance, and can have high sterilization efficiency under the excitation of sunlight.

The invention relates to the technical field of electrochemical water treatment, in particular to a preparation method of a self-supporting antimony-doped tin dioxide nanoflower electrode, which comprises the following steps: dissolving trisodium citrate dehydrate and antimony trichloride in absolute ethyl alcohol; then adding water and stannous chloride dehydrate to form a precursor solution; heating the precursor solution, and naturally cooling; after cooling, carrying out solid-liquid separation on the bottom mud, and then cleaning and drying to obtain antimony-doped tin dioxide powder; taking antimony-doped tin dioxide powder, a pore-forming agent and a binder, grinding the materials until the materials are uniformly mixed, and transferring the materials into a tabletting mold for pressure casting to obtain a blank; and calcining the green body to obtain the product. Nano-flower-shaped antimony-doped tin dioxide powder is prepared, in the die casting and sintering process, due to the fact that nano-flower petals of the nano-flower-shaped antimony-doped tin dioxide powder are mutually staggered, a connection mode similar to a mortise and tenon joint mode is formed, and compared with nanospheres, the binding force between the powder is enhanced; and the mechanical strength, the electrochemical active area and the catalytic activity of the electrode are improved.

The invention discloses an air cathode Sn-CoSb / NC of a zinc-air battery and a preparation method of the air cathode Sn-CoSb / NC. The preparation method comprises the following steps: preparing a cobalt-doped ZIF-8 (Co-ZIF-8) precursor: mixing a methanol solution of dimethylimidazole with a methanol solution of zinc nitrate hexahydrate and cobalt nitrate hexahydrate, stirring at room temperature for 24 hours, centrifuging, washing and drying to obtain the Co-ZIF-8 precursor; the preparation method comprises the following steps: taking a small amount of N, N-dimethylformamide (DMF), adding tin tetrachloride pentahydrate and antimony trichloride, and stirring until the tin tetrachloride pentahydrate and the antimony trichloride are completely dissolved; then adding Co-ZIF-8 powder into the solution, stirring for 5 hours at room temperature, and then centrifuging and drying to obtain purple powder; and placing the powder in a tubular furnace, and carrying out high-temperature pyrolysis in an inert atmosphere to obtain the Sn-CoSb / NC electrocatalyst. The novel catalyst has excellent ORR functional activity, and as an air cathode of a zinc-air battery, high power density and excellent charge-discharge cycle stability are realized.

The invention relates to a glass scintillator and a preparation method and application thereof, and belongs to the technical field of scintillator preparation. The method comprises the following steps: mixing quaternary phosphonium salt and antimony trichloride, and heating and melting at a set temperature to obtain a molten substance; preheating a glass matrix to enable the temperature of the glass matrix to be the same as the temperature of the molten substance; and covering the surface of the preheated glass substrate with the molten substance to obtain the glass scintillator. According to the preparation method, heat uniform diffusion of ions in molten glass at a high temperature is utilized, so that time-consuming and labor-consuming regulation and control of complex thermodynamic and dynamic processes of a traditional crystalline state scintillator material are avoided, and the X-ray glass scintillator material with the resolution not lower than 19.0 lp / mm can be prepared.

The present invention relates to an organic germanium ligand and samarium ion-functionalized antimony tungstate material with the chemical formula: Na4[H2N(CH3)2] 16 H 18 [Sm4(H2O) 12 W4O 14 Ge(CH2CH2COOH)]2[SbW9O 33 4[Ge(CH2CH2COOH)SbW 15 O 54 2·56H2O. The synthesis of this material uses an organic germanium ligand and an Sb 3+ ion double-template induced synthesis strategy, and is prepared by a one-step self-assembly reaction using antimony trichloride solution, sodium tungstate, di(carboxyethyl)germanium sesquioxide, dimethylamine hydrochloride and samarium nitrate. This preparation method is simple and easy to implement, and has a low cost. In addition, the organic germanium ligand and samarium ion-functionalized antimony tungstate material are compounded with gold nanoparticles to obtain a nanocomposite material with good stability and high photothermal conversion efficiency. The application of this composite material in the photothermal therapy of breast tumor cells shows good therapeutic effects, indicating that the organic ligand and rare earth-functionalized antimony tungstate material have certain application potential in tumor treatment, tumor drugs, photothermal therapy and other aspects.

The invention discloses a catalyst for ethylene glycol antimony and a preparation process of ethylene glycol antimony, and relates to the technical field of polyester synthesis catalysts. On one hand, the invention provides the catalyst for ethylene glycol antimony, the catalyst is cerium-loaded Uio-66-NH2 particles, and the particle size of the catalyst is 0.1-2.5 mm. On the other hand, the invention provides a preparation process of ethylene glycol antimony, antimony trichloride and ethylene glycol are mixed according to a certain proportion to serve as reaction raw materials, a small amount of catalyst for ethylene glycol antimony is added, Uio-66-NH2 particles are added to serve as an absorbent of a reaction by-product hydrogen chloride, and a pure ethylene glycol antimony product is prepared through a constant-temperature reaction. The catalyst provided by the invention can effectively improve the reaction rate of ethylene glycol antimony synthesis and the purity of the synthesized product; the ethylene glycol antimony prepared by the preparation process disclosed by the invention is relatively excellent in purity and quality and relatively low in cost.

A simple and efficient method for preparing high-purity rubidium chloride includes the following steps: Adding crude rubidium salt to glacial acetic acid, heating and stirring to dissolve, filtering to remove insoluble impurities, yielding a crude rubidium salt solution in glacial acetic acid; adding a certain amount of antimony trichloride solution to the crude rubidium salt solution in glacial acetic acid, stirring the reaction to obtain a small amount of pale yellow precipitate and solution until the reaction reaches equilibrium, yielding a clear liquid and precipitate, the precipitate being used to prepare high-purity cesium salt; secondary precipitation: adding a certain amount of tin tetrachloride solution in glacial acetic acid to the clear liquid, stirring the reaction to obtain a white precipitate and solution; standing, filtering, and washing: cooling and standing the solution until the reaction reaches equilibrium, filtering, washing the precipitate with glacial acetic acid, yielding a precipitate and washing liquid; double salt decomposition: adding high-purity water to the precipitate to form a slurry, then adding ammonia to adjust the pH value, filtering to obtain tin hydroxide precipitate and rubidium chloride solution; sending the filtrate for testing: evaporating the qualified rubidium chloride solution to dryness, calcining to obtain rubidium chloride; recrystallization: obtaining the high-purity rubidium chloride product. It has the advantages of effectively removing cesium ions from crude rubidium salt and avoiding the influence of alkali metal ions on the purity of the final product, without loss, and with high product purity.

This application relates to the field of zinc-based battery technology and discloses a method for preparing a negative electrode current collector for zinc-nickel batteries. The negative electrode current collector includes a three-dimensional porous copper substrate and a tin-antimony functional layer formed on the surface of the substrate. The preparation method involves immersing the three-dimensional porous copper substrate in a functional deep eutectic solvent and performing a low-temperature in-situ chemical conversion reaction at a preset temperature of 80–120°C. The functional deep eutectic solvent is prepared from choline chloride, urea, anhydrous stannous chloride as a tin source, anhydrous antimony trichloride as an antimony source, and imidazole as a reaction regulator. This invention utilizes the copper substrate as a reducing agent to generate a tin-antimony functional layer that is firmly bonded to the substrate in situ. This method is a one-pot operation with a simple process and no wastewater generation. The obtained current collector can effectively inhibit zinc dendrite growth, improving the cycle life and safety of the battery.

The invention discloses a preparation method of an antimony trioxide composite flame retardant, which is specifically implemented according to the following steps: pretreating a catalytic cracking poising agent to obtain a poising agent solution, and adding antimony trichloride into hydrochloric acid; dropwise adding an antimony trichloride solution into the poising agent solution, and stirring for 3-5 hours to obtain a first mixed solution; standing to enable precipitates in the first mixed solution to settle to the bottom, clarifying supernatant liquid, then pouring out the supernatant liquid, and filtering bottom turbid liquid to obtain a first filter cake; adding water into the first filter cake, dispersing to obtain a first turbid solution, adding an alkaline solution into the first turbid solution, neutralizing to obtain a second turbid solution, filtering the second turbid solution to obtain a second filter cake, washing the second filter cake, and drying to obtain the antimony trioxide composite flame retardant. The preparation method of the antimony trioxide composite flame retardant is simple in process, low in raw material cost, high in additional value and environmentally friendly.

The invention relates to the technical field of antimony extraction, in particular to an antimony ore smelting process which comprises the following preparation steps: S1, mixing crushed ultralow antimony ore with a sulfur source and a reducing agent in an inert atmosphere, and performing microwave-assisted sulfuration roasting at 450-550 DEG C to convert antimony tetroxide into volatile antimony trisulfide; s2, mixing the vulcanized calcine with calcium chloride, bentonite and water to prepare pellets of 10-15 mm, performing chloridizing roasting in a weak oxidizing atmosphere at 650-750 DEG C, and condensing volatile gas to obtain antimony trichloride; and S3, antimony trichloride is fed into a molten pool smelting furnace, a reducing agent and oxygen-enriched air are sprayed, metal antimony and chlorine-containing flue gas are obtained through reduction smelting at the temperature of 1150-1250 DEG C, and the flue gas is recycled to prepare calcium chloride for recycling. According to the method, through a low-temperature vulcanization-chlorination-molten pool reduction closed-loop metallurgical system, efficient enrichment and short-process extraction of antimony are achieved, and the metal recovery rate is gt; the cyclic utilization rate of calcium chloride is gt; the method has the advantages of being high in recovery rate, low in energy consumption, clean and environmentally friendly, and is suitable for recycling treatment of the ultralow-grade antimony ore.

The present application relates to the field of synthesizing 2,4-dichlorotoluene, and in particular to a method for catalyzing the directional synthesis of 2,4-dichlorotoluene by parachlorotoluene. A method for catalyzing the directional synthesis of 2,4-dichlorotoluene by parachlorotoluene, comprising the following preparation steps: taking parachlorotoluene, a catalyst and an auxiliary agent, mixing, using chlorine as a chlorine source, heat-insulating the reaction, collecting the reactants, separating the reactants and collecting 2,4-dichlorotoluene; the catalyst includes one or more of aluminum chloride, ferric chloride, antimony trichloride and zirconium tetrachloride. The present application adopts a homogeneous catalyst, which has the advantages of stable properties, convenient purchase channels, no need for further processing, low toxicity and high product yield; and the catalyst application system has mature industrial technology, many separation methods, and the convenience and safety of operation can be fully guaranteed, which can not only effectively improve the effect of catalytic synthesis, but also synthesize and separate 2,4-dichlorotoluene with higher purity and yield.

The present invention relates to an improved process for the preparation of 2-bromo-5-fluorobenzotrifluoride comprising, reacting 3-fluorobenzotrifluoride with brominating agent in the presence of antimony catalyst selected from antimony trichloride (SbCl3), antimony pentachloride (SbCl5) or mixture(s) thereof, to provide 2-bromo-5- fluorobenzotrifluoride with higher yield and purity

The invention relates to the field of heat-insulating glass preparation, in particular to a heat-insulating glass preparation method based on E-51 / ATO, which comprises the following steps: 1, pouring tin tetrachloride pentahydrate and antimony trichloride as precursors into a stainless steel high-pressure kettle with a para-polyphenol lining, and sealing to obtain an ATO dispersion solution; 2, the ATO dispersion solution is centrifuged and washed with ethyl alcohol and deionized water respectively, and dried nanometer ATO powder is obtained; 3, weighing E-51, an amine curing agent and acetone, uniformly mixing, pouring the nano ATO powder, and continuously stirring to obtain uniform ATO / E-51 slurry; and 4, fixing the pretreated glass substrate on a platform, injecting the ATO / E-51 slurry into a spray pen material cup, spraying the ATO / E-51 slurry on the surface of the glass substrate, and drying and curing a sprayed sample to obtain the ATO / E-51 heat-insulating glass with a compact surface structure. ATO nano-particles with the particle size of 10 nm are directly prepared through an optimized solvothermal method, and then agglomeration of the nano-particles is effectively prevented through an accurate mass ratio and high-speed stirring synergistic dispersion process.

The invention discloses a bactericidal nanotube material for wastewater treatment. The bactericidal nanotube material is prepared by the following steps: step 1, preparing silver acetate and dinitro disulfide into a silver acetate-dinitro disulfide solution according to a molar ratio of 1: 1; 2, antimony trichloride and dinitro disulfide are prepared into an antimony trichloride-dinitro disulfide solution according to the molar ratio of 1: 1; 3, the silver acetate-dinitro disulfide solution and the antimony trichloride-dinitro disulfide solution are mixed, and polyvinylpyrrolidone is stirred and mixed; and 4, heating to 160 DEG C, reacting for 20-40 hours, washing with water and alcohol, and centrifuging to obtain the nanotube. According to the prepared sterilization nanotube material for wastewater treatment, a cluster-shaped hollow nanotube material is formed, the contact area is greatly increased, the wastewater treatment capacity is improved, and the sterilization nanotube material has higher sterilization performance, so that the sterilization nanotube material can be suitable for treatment of medical wastewater and has wide application prospects.

The invention discloses a sterilizing nanotube material for wastewater treatment, comprising the following steps: Step 1: silver acetate and dinitro disulfide with a molar ratio of 1:1 are configured into silver acetate dinitro disulfide solution; Step 2: antimony trichloride and dinitro disulfide with a molar ratio of 1:1 are configured into antimony trichloride dinitro disulfide solution; Step 3: silver acetate dinitro disulfide solution and antimony trichloride dinitro disulfide solution are mixed and polyvinyl pyrrolidone is stirred and mixed; Step 4: warming up to 160 ° C, reacting for 20 to 40 hours, washing with water and washing with alcohol, and obtaining nanotubes after centrifugation. The sterilizing nanotube material for wastewater treatment prepared by the present invention forms a clustered hollow nanotube material, which greatly increases the contact area, improves the ability to treat wastewater, has more powerful bactericidal performance, and can therefore be applied to the treatment of medical wastewater, with broad prospects for use.

The invention relates to an antimony trioxide flame-retardant master batch with high impact resistance, and belongs to the technical field of antimony trioxide flame-retardant master batches. Comprising the following raw materials in parts by weight: 100 to 200 parts of absolute ethyl alcohol, 15 to 45 parts of antimony trichloride, 100 to 200 parts of ammonia gas, 50 to 150 parts of deionized water, 80 to 100 parts of ABS (Acrylonitrile Butadiene Styrene) high rubber powder, 80 to 100 parts of tetrabromobisphenol, 5 to 15 parts of a dispersing agent, 5 to 15 parts of an antioxidant, 5 to 15 parts of a lubricating agent and 5 to 15 parts of an anti-dripping agent. According to the antimony trioxide flame-retardant master batch with high impact resistance, the dispersity of antimony trioxide in the ABS high rubber powder is improved through the dispersing agent, modified plastic particles with more stable quality are obtained, the flame-retardant master batch is more stable in performance and small in product quality fluctuation, the flame-retardant master batch has the advantages of being good in flame-retardant stability and high in impact strength, and other properties are not obviously influenced; the retention rate of various mechanical properties of the flame-retardant ABS prepared from the flame-retardant master batch is better than that of the flame-retardant ABS prepared from a powder flame retardant under the condition of a long-term thermal aging experiment, and meanwhile, the yellowing resistance of the flame-retardant ABS is better under the condition of high temperature.

The invention discloses a preparation method of an antimony oxychloride composite flame retardant, which is characterized by specifically comprising the following steps: pretreating a catalytic cracking equilibrium agent to obtain an equilibrium agent solution, and adding antimony trichloride into hydrochloric acid to obtain an antimony trichloride solution; dropwise adding an antimony trichloride solution into the poising agent solution, and stirring for 3-5 hours to obtain a first mixed solution; adding an alkaline solution into the first mixed solution to neutralize until the pH is 7-8, standing and filtering to obtain a filter cake; and washing the filter cake, and drying to obtain the antimony oxychloride-based composite flame retardant. The preparation method of the antimony oxychloride composite flame retardant is simple in process, low in raw material cost, high in additional value and environment-friendly, and solves the problem of recovery of a catalytic cracking equilibrium agent.

The invention relates to a process for preparing high-purity antimony by using crude antimony white powder. The method comprises the following steps of: mixing Sb2O3 with the content gt; the method comprises the following steps: washing 95% crude antimony white powder with deionized water at normal temperature, drying, dissolving with high-quality hydrochloric acid, and filtering to obtain an antimony trichloride stock solution; concentrating the antimony trichloride stock solution to obtain a concentrated solution, rectifying the concentrated solution twice, discarding high-boiling-point and low-boiling-point substances, and performing hydrogen reduction on an intermediate material subjected to secondary rectification to obtain reduced antimony; the reduced antimony is sequentially subjected to surface treatment, vacuum distillation and zone-melting purification, and a high-purity antimony product with the purity larger than 99.9999% is obtained. The method is easy to operate and has very high practicability, and the obtained high-purity antimony product is high in purity and high in application value.

The invention discloses a preparation method of a high-crystallinity Sb2S3 antimony sulfide film, which not only can be applied to a PEC photocathode, but also can be applied to the fields of solar cells, photoelectric detection and the like. According to the method, 2, 4, 6-trichlorophenol is used as an additive and dissolved in acetone together with antimony trichloride, and the high-quality Sb2S3 antimony sulfide thin film is obtained through chemical bath deposition. According to the method, the Sb2S3 precursor and the acetone solvent serve as raw materials, the interaction between Cl atoms and Sb atoms at the tail ends of 2, 4, 6-trichlorophenol molecules is utilized, the intermolecular interaction between the Sb2S3 precursor and the acetone solvent can be enhanced through the interaction, the number of Sb2S3 crystal nucleuses is reduced along with reduction of the supersaturation degree, and growth of the crystal nucleuses is further promoted. And the crystallization peak intensity is enhanced from 150 to 500. Meanwhile, the Fermi level of semiconductor antimony sulfide is reduced, P-type conductivity is enhanced, and therefore the performance of the antimony sulfide photoelectric cathode is improved.

The present invention relates to the field of inorganic materials, and in particular to a method for preparing clustered antimony trioxide. The method comprises the following steps: adding antimony trichloride to an organic solvent consisting of ethanol and n-butanol, adding a surfactant and mixing, dropping deionized water, and adjusting the pH of the system to 1-2 to obtain a mixed solution. The mixed solution is transferred to a polytetrafluoroethylene-lined autoclave, sealed, heated to 120-150°C, and reacted for 5-10 hours. After returning to room temperature, the pH of the reaction solution is adjusted to 8-9 with an alkaline solution, stirred for 10-60 minutes, and then the precipitate is collected, washed, and dried. The clustered antimony trioxide prepared by the present invention is used as an active material and can significantly improve the electrochemical performance of a lithium-ion battery.

The present application relates to triethyl antimony processing technical field, especially in kind of preparation triethyl antimony, including the following steps: under the protection of inert gas to the reaction bottle raw material antimony trichloride and ether solvent is added, and the atmospheric pressure reflux device is installed, and the stirring is started;Ethyl lithium ether solution is added dropwise to the reaction bottle, after dropwise addition is completed, 70~80 ℃ stirring reaction is kept for 3~6h;After the stirring reflux is finished, the solvent ether is distilled out first, and the triethyl antimony initial product is obtained;The vacuum distillation device is installed, and the triethyl antimony crude product is obtained by vacuum distillation;The obtained triethyl antimony crude product is subjected to twice vacuum rectification, and high-purity triethyl antimony is obtained, and the purity reaches 6N by nuclear magnetic resonance, ICP detection.Pure triethyl antimony is generated by the reaction of ethyl lithium and antimony trichloride under the protection of inert gas, the preparation method is safe and efficient, simple operation, raw material is easy to obtain, no by-product, high yield and high purity product.

The invention relates to the field of inorganic materials, in particular to a preparation method of antimony trioxide nanoparticles, which specifically comprises the following steps: uniformly mixing antimony sulfide ore with inorganic fused salt, transition metal oxide and a carbon material, grinding into powder, pressing the powder into blocks, smelting to obtain molten liquid, separating crude antimony from the molten liquid, dissolving the crude antimony with hydrochloric acid, and drying to obtain the antimony trioxide nanoparticles. Adding high-purity antimony powder, stirring and reacting to obtain an antimony trichloride crude solution, filtering the antimony trichloride crude solution, adding ammonia water and ionic liquid into the obtained filtrate, stirring and reacting, collecting a product, and drying. The inorganic molten salt contains metal fluoride, and antimony trioxide prepared by the method not only has a cubic crystal form, but also has a nano size, and is higher in economic added value and wider in application prospect.

The invention discloses a metal antimony and carbon composite material, a preparation method and application thereof, and the preparation method comprises the following steps: dissolving antimony trichloride in ethylene glycol, then adding hydrothermal carbon spheres, uniformly stirring, then transferring to a reaction kettle for solvothermal reaction, heating to a set temperature and holding time to obtain a precursor, and drying to obtain the metal antimony and carbon composite material. And finally, reducing the precursor into the metal antimony and carbon composite material in a high-temperature reducing atmosphere. The liquid ethylene glycol is used as a carbon source, the hydrothermal carbon spheres are used as a catalyst, in-situ polymerization of ethylene glycol can be remarkably promoted, a precursor is coated with a polymer, the antimony and carbon composite material with a good coating effect can be obtained after pyrolysis, the used raw materials are low in cost, the synthesis method is simple, the carbon and antimony components of the obtained composite material are controllable, and the preparation method is simple. Wherein the carbon content is between 15.2 wt% and 68.4 wt%, and when the composite material is used as a negative electrode material of an alkali metal ion battery, the problem of poor cycle performance of the material can be solved, and the composite material has outstanding electrochemical performance.

The invention relates to a Sn-Se-Sb thin film negative electrode material and a preparation method thereof.The preparation method comprises the steps that a certain amount of sodium citrate, seleninic acid, ethylene glycol and stannic chloride are sequentially added into deionized water and stirred to be completely dissolved, and a solution A is obtained; adding antimony trichloride into absolute ethyl alcohol, and stirring until the antimony trichloride is completely dissolved to obtain a solution B; mixing the prepared solution A and the prepared solution B to obtain an electroplating solution C; and placing the electrolyte C in an electrolytic cell, taking a copper foil as a working electrode, a platinum sheet as a counter electrode and a mercury / mercurous sulfate electrode as a reference electrode, connecting an electrochemical workstation, setting and applying alternating voltage at room temperature, depositing for a certain time, and circularly depositing for 7 times according to the alternating voltage, thereby obtaining the Sn-Se-Sb film negative electrode material on the surface of the copper foil. The Sn-Se-Sb film negative electrode material disclosed by the invention has the advantages of high specific capacity, good cycling stability and rate capability, and the preparation method is simple, low in cost, environment-friendly and easy for large-scale production.